Home / 121,016.20-181,524.30-68,528.20

Finding the Fourth Proportional to 121,016.20, 181,524.30 and 68,528.20

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Solution

The fourth proportional to 121,016.20, 181,524.30 and 68,528.20 is: 102,792.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,016.20 : 181,524.30 = 68,528.20 : x
  2. Step 2: Convert to fraction form
    121,016.20/181,524.30 = 68,528.20/x
  3. Step 3: Cross multiply
    121,016.20x = 181,524.30 × 68,528.20
  4. Step 4: Simplify right side
    121,016.20x = 12,439,533,535.26
  5. Step 5: Solve for x
    x = 12,439,533,535.26/121,016.20
  6. Step 6: Final answer
    x = 102,792.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.